Pan greasing machine



Dec. 2.3, 1941. L. G. BURKHART 2,267,491 PAN GREASING MACHINE Filed Oct.24, 1940 3 Sheets-Sheet l Dec.' 23, 141.l l.. G. BURKHART y PAN GREASINGMACHINE Filed oct 24,-1940 5 Sheets-Sheet 2 v.arial..11.111,111'11'11'111,1111

3 Sheets-Sheet 3 PAN GREASING MACHINE Filed 0G11. 24, 1940 L. G.BuRKHAR-r L. i wzmmf VHilf.:

Patented Dec. 23, 1941 U NITED STATES? PATENT OF FICE BAN GBEASINGMACHINE Lester; Glen Burkhart, Sacramento, Calif. Application octber 24,1940seria1No; Vrecaer?,

(ci. cifre-n 15 claims.

.This invention relates 1` to. certairr new* and:l useful improvementsin: pan greasing machines..

The primary object ofthefinventionzis toV provide a pan greasing machineand one that is especially designed for thelgreasingsof breadpansand inwhich al. grease absorbent pad rising above va bed plate is adapted-*to`havegrea'sev automatically supplied thereto upon downwardlfv pressureon:` the bed? plate occupied by the placement ot the' bread Dan ininverted position onto: the bed plate and-w over the pad with the-breadpanfmovable over the@v pad to have the inner surfacesthereof greased.

Bread pans arefusually assembled in groups of three or more rigidlyconnected individual-pans and the greasing, machine'-` of'.thisfinventionf is:` constructed1 to provide.` a greaser for eachi pan--ofi such a group.

Withftheabove and;W other objectsy in View that will become-` a-pparentas the-nature of. the invenf tion is better understood, the sameconsistsf inv general orv certain. novel details 0f construction andcombination` ofv parts hereinafter more fullyV described, illustratedinV the accompanying; draw-f ings and claimed.

ln the accompanying drawings;

Fig.` 1- is a rear elevational- View'` ora pan greets-- ing machineconstructed inaccordance withthe presentv invention, showing an assemblyorbattery of four pan greasers,

Fig. 2` is a vertical cross-sectional view taken online 2-2 of Fig. 1,showing the lcushioned bed;

plate carrying the pangreaser andthepivotally mounted pan supportingplate for operating. they grease pump that supplies the greaser;v

Fig. 3 is a fragmentary top plan view showing;

one of. the greasers.l extending upwardly through anA opening in one ofthepanvsupporting plates,

Fig.V 4; is a vertical detail sectional view taken on line 4,-4 of Fig.2, showing theigrease .passages through the headofthepan greaser,

Fig 5. is al fragmentary verticalisectional. view taken on line 5-5oiliig.v

Fig..6 is a horizontal detail sectionalview-taken on line 6.-.6of.liiig.f2, y

Fig. 7 is afragmentary vertical-sectional View through the. greasepump,- v v Fig. 8. is a fragmentary sectionalview `showing. one or'` thespring armsfor holding. thegreasingpad. in its pad-releasing or openedposition by means, of alley,` and. j

Fig. 9 is a fragmentary side.v elevational view of the key for.releasing: the pad. holding spring. The pangreasinglmaohine eomprisesaskeleg ton frame structure formed'oiangle,.ohannel and. flat irons, therear wall of the frame 'structure f' comprising a head rail I0" carryingdepending corner'legs. lil with forwardly directed horizontal baseportions' l2` that` carry at their forward ends upwardlyandzforwardlyinclined` front corner legs shown in Fig. 2.

Upwardly and rearwardly" directed brackets' I9 are carried by' the upperend of `thefrear wall structure-of the machineand provide bearings fora. longitudinally extending shaft 2lil and as a seriesgzof pan greasersperse together with associated 'bed plates are supported' on `the shaft`2li', only'oneV of said pan greasing devices will be described; Eachpan greasing `device lcomprises a bediplate 2! of channel formationvopening downwardly and having' side flanges 22, the rear end of the bedplate 2l carrying on its underside a sleeve 23\-journaled onl the shaft2Ilwhile apin` 2li` depending from thefront end of the bed plate-2 I Visselectively received in an opening 25 in the horizontal flange Il of theangle iron lli` to'vhold thebed plate 2-l against lateral shiftingmovements and providing adjustment therefor to` accommodate the relativepositioning of the series of pan greasers with respectto a` battery ofbread pans. The forward end of the bed. plate 2|- is cushioned by meansof the spring` 26 surrounding the-pin 24 between. the bed plate 2l`andthe ange IFI.

A pan greaser risesfrom the bed plate 2t ad-A jacentthe free forward endthereof and abovethe grease receptacle I8, the pan greaser comprising abase block 2l carrying an. upstanding. head of T-formation having a flatvertical leg 23V and a crossy head 2.9- atits upper end. AV centralvertical bore 30 extends upwardly through the base block` 2.1r and leg28 and communicates with -a cross bore 3| in the cross head 29, thecrossbore 3|. being` closed at one end. and having its other end openingthrough the cross head and closed by a` removable block. 32 tofacilitate. cleaningV thereof. A series ofvertica-l bores4 33 extendfrom the cross bore, 3l. upwardly through the upper side The rearcornerlegs atthe lower ends there` suitable material such as fabric or thelike covers the cross head 29 and is saturated by grease forced throughthe bores in a manner to be presently described. To hold the absorbentpad in position on the cross head 29, a spring arm is associated witheach side of the cross head to engage the outer face of the pad 34 asillustrated, each spring arm including a looped upper portion 35 havingthe lower ends 35 and 31 respectively coiled upon outwardly extendinglugs 38 carried by the leg 28 of the greaser head, the terminal end 39of the spring loop 35 being anchored in the leg 28, while the terminalend 40 of the spring loop 31 is anchored in the upper face of thechannel bed plate 2| as shown at 4|. To release each spring loop 35 formoving the same away from the cross head 29 to release the absorbent pad30 for replacement or the like, there is provided a key shown in Figs. 8and 9 as comprising an elongated blade 42 with a handle 43 rising fromone end thereof. The blade 42 is adapted to be positioned between thelower portions of the spring loop 35 and the adjacent side face of theleg 28 of the greaser head for moving the spring 35 away from thegreaser head as shown in Fig. 8.

A bread pan supporting plate 44 is pivotally mounted upon the shaft 20above the bed plate 2| by means of a pair of apertured lugs 45 journaledupon the shaft 2D at opposite sides of the sleeve 23 that pivotallysupports the bed plate 2|, this mounting for the pan supporting plate 44being clearly illustrated in Figs. 1 and 2. The pan supporting plate 44has a longitudinally slotted opening 45 therein through which the pangreasing head upwardly projects as illustrated in the several views.

A grease pump is carried by the bed plate 2| and the piston of thegrease pump is adjustably and operatively connected to the pansupporting plate 44 and, as shown more clearly in Figs. 2, and 7, achannel iron frame is carried by and depends from the bed plate 2| fornormal location Within the grease receptacle |8. The channel fra-mecomprises a vertical rear leg 41 having the upper end 48 thereof securedto the underside of the bed plate 2| with the leg 41 positioned inproximity of the rear wall of the grease receptacle I8, the channelframe further including a lower horizontal base portion 49 thatcarriesrat its forward end an upwardly and forwardly inclined legportion 58 that is connected at its upper end as at 5| to the undersideof the forward free end of the bed plate 2|. A pump block 52 issupported on the base portion 49 of i the channel frame and has a pairof vertical bores 53 and 54 therein that are connected at their lowerends by means of a lower horizontal cross bore 55. An apertured nipple56 depends from the pump block 52 at the point of communication betweenthe lower end of the vertical bore 54 and the cross bore 55 and isconstructed to provide a valve seat 51 closed by a downwardly seatingvalve 58. The nipple 56 extends through the base portion 49 of thechannel frame and carries below said channel frame and within the greasereceptacle |8, a filter cage 59. A downwardly seating valve 65 controlscommunication between the lower end of the vertical bore 53 and thecross bore 55 and the open end of the bore 55 spaced from the valve 58to facilitate cleaning of the pump block is closed by a screw plug 6|. Apiston 62 is reciprocably mounted in the vertical bore 54 and projectingabove said pump block has a head 63 upon the upper end r thereof uponwhich one end of a link 64 is pivotally mounted as at B5. The other endof the link is pivotally mounted as at 66 to one end of a bar 61 thathas its other end pivotally attached as at 68 to the vertical leg 58 ofthe channel frame, this assemblage of elements being operative to assurevertical movement of the piston 62 in the piston block. The legs 59 ofthe clevis are pivotally mounted on the pin 65, while the head of theclevis has a screw 1| adjustably threaded therethrough, the upper end ofthe screw being forked to provide a pair of side legs 12 having inturnedends 13 adjustably received in a series of openings 14 in angle iron,brackets secured to and depending from the pan supporting plate 44. Thepan supporting plate 44 and pump piston 62 are normally held at theirlimits of upward movements by means of the coil spring connections 16between the bar 61 and a side flange 22 of the bed plate 2| as will atonce be apparent from an inspection of Fig. 2. The connection betweenthe pump block 52 and the greaser head includes a flexible conduit 11,one end of which is connected to the tting 18 threaded into the upperend of the vertical bore 53 in the valve block 52, while the other endof the flexible conduit is 4attached to a tting 19 mounted in the bedplate 2| and in communication with the bore 3B through the leg 28 of thegreaser head. A gas burner 86 or other heating means is disposed beneaththe lower end of the grease or grease receptacle |8.

From the above detailed description of the invention, it is believedthat the construction and operation thereof will at once be apparent, itbeing noted that the bed plates 2| together with the associated breadpan supporting plates 44 may be longitudinally shifted upon the shaft toaccommodate the relationship of batteries of bread pans and that theelements after adjustments are retained in their shifted positions bythe pin 24 receivable in selected openings 25 in the flange |1 at thefront side of the machine. With fat or lard in the receptacle I8, thedevpressing of the forward end of the plate 44 by means of a pan'P shownby dotted lines in Fig. 2 placed on the plate 44 overlying the greaserhead, pivotally moves the plate 44 on the shaft 28 to depress the screwrod 1| for the operation of the pump piston 62 to force any grease inthe pump block upwardly into the bore 52 by way of the valve 60 andthrough the flexible conduit 11 into the bore in the base block 21 ofthe greaser head for distribution through the several bores 38, 3| and33 in the greaser head for the saturation of the pad 34. By moving thepans back and forth over the saturated pads 34 the inner faces of thebottom and side walls of the pans are greased. It will be understoodthat by several pivotal movements of the [bread pan supporting plate 44the piston 52 will be reciprocated in the pump block to draw fat orgrease from the receptacle I3 through the illter cage 59 and into thelower end of the vertical bore 54 and cross bore 55, downward movementof the piston 52 causing the valve 58 to engage its seat 51 and forcethe grease through the cross bore 55 upwardly `by way of the valve 68into the bore 53 and flexible conduit 11. The spring associated with theforward end of the bed plate 2| acts as Va shock absorber in cushioningdownward pressure on the pan supporting plate 44. When desired, the bedplate 2| with all of the elements supported thereby and the bread pansupporting plate 44 may be pivotally moved asomar,

on. they shaft '1&1 to a position; outwardly and; late i eralhrA olfthe: smaad: receptacle. lli' wherehyff the. latter` maybe; remouedicrcieaninefnurncses: andf also:` to. presentthegelemente: of thelmachinefyin. position. for ready;y accessv for. cleaning-rox; repair:

While. there. ishereimshown-.ands described', the; preferred embodimentofi' the invention, itis.; to.. be understood. that.` minorchang-essmay4 barriada; in the details oi;coi'istxfuctiomYsuchv aszgwill{all} withinY thefscope-,cii the havent-ion` as. claimed Ifolaim:

1i.4 Ina pan greasing; machine of fthe' character described, 1 airtime`structure having. a -horizontale bearing shaft, a. grease'. receptaclesupported. in the frame structure,V afserieszaot pan-.greasi'ng units`for the simultaneous: greasingf of a. Vbattery.` ot. pans, eachunitpomprising ahedgplate pivotally: mounted.: atzone emiten. the.sha-ft'ami.` normaliyf overlying the;` grease receptaclel a. `pan`greaser. rising from ther'bedfplate; aspen.: supporting: platefpiuotally. mounted on theshaft and overlying the bed 4plate andihavingan openingztherein through which the pan greaserupwardlyY extends* and;pump mechanism. incommunicatien. with the greaserv` and operated bythewpanA supportingl plate.

2. In apan greasing machine of'` the characterdescribed; a.framestructure: having a horizonE tal ibearing shaft, a greasereceptacle supported; intheA trame;V structure, a bed-1 plateepivotally; mounted atvoneendl on the shaitsand normally` overlying thegreasel receptacle, a pan. greaserf rising from the Abedplate,` apansuppcirtingplate` pivotallyir mounted ontheY shaft Vand: overlying thehed plate aridi` having an opening` therein, through which the-pangreater-fmovvardlyreinsends andi pump. mechanism in. communicationwitnthe greaser and operated by thefpan supporting. plate, the pumpmechanismbeing supported by @and dependingl from thel bed plate forunitary,r

movement'. therewith.

3; In a pan` greasing machine otthe cliaracterl described; aframestructure having-ia,- horizon-l tali bearing shaft,` a. grease'receptacle i supported in the frame structure,y a bedplate pivotallyAmounted at one end'ontheshaft andfnormally': overlying` the. grease.receptacle; a. `pan greaser risingirom the -bed plate; apansupport-ingplateT pivotally mounted: ony the: shaft` andi overlying thebedV plate arielvk l'iauing-` an` opening therein through which the pan.greaser upwardly extends andA pump. mechanism inl cornmunica-tionV withvthe greaser and operated: by.l the pan supporting plate,` the pumpmechanism being supported by. and depending from the bed plate forvlunitary movement therewith and means:` for normally: holding the pansupporting` plateV at its limit ofiu upward: movement;

4f; In a panereasngmachine of the character described, a framestrueturehaving a horizontal bearing shaft; a grease-v receptaclelsupported in the Ira-me structure, ai' series of' pan grenasingvr unitsforY the simultaneous grossing-A oi a battery of' pans, eachAuniteomprising abed platepv'- otally mounted at one end on the shaft"and`l` normally-*overlying the grease` reeeptacle, av pan greaserrising: from. the :b'ed'plate a pan support'-V ing plate pivotallyYmounted'onv the shaft and overlying the bedplate andhavi'ngY an openingJthereiny through which the: pan greaser-upwardlyv extends and pump.mechanism in communication with the greaser` and' operatedfby the pansup porting plate; said pan greasing-units being latf orally adjustablelengtudnallyjof, the shaftV and a cushionedsupporislortheifree-eend; ofeachhed; plate operative to hold the bed plate inradjusted.

position..

5. In, aipanlgxeasinmmachineaof; the; character describedl, a frame.structure having: a; horizontal.

bearing shaft; ari grease; receptacle supported in,` the. framestructure@ a. series. oi' pany greasing' unitsfor .the :simultaneousgreasing of. a battery` o1'`v pans,` each. unitV comprising. a.` bed.plate., ply.-

f otally mounted; at one end; on the shaft and.

nori'nallyI oueiflyinsrf the. grease. receptacle, a pan. grae-.serrisingitrom the..ibed plate.y a. pan sup portingplate .piyutallymounted. onf the.` shaft; and. overlying` the bed plate@ and'having; an,opening.

therein through whiehthelpanlgreaser upwardly pan't greasing units.being laterally adjustableVv longitudinally off theshaft and. acushionedsul.

portiorthefree endoffeacmbed plate. operativel to. hold.. theA hed.platey in i adjusted` position.-

6;. In a.. pan: greasing machine of the `character described; aframestructure haring a horizontal. bearing shaft, a: seriesrof pangreasing units for thesimultaneous greasingI of la battery of pans, eachunit: comprising a; grease receptacle sup. ported in the frame.structure, a bed` plate piu.-L otally mounted'atronevend" onthe shalt;and' nor-1 mailleV overlying theA grease receptacle; a pan greaserrising from the bedplate, a pan support.-` ing plate pivotally mountedon the shaft and overlying the bedf: plate and having an opening ftherein throughiwhichxthepan greaser upwardly extendsandpumpmechanisrnfin `communication with the grossen and'foperatedliy the pansup-.i` porting.` plate,n the pumplmechanism: being sup.4 ported byand-.depending-A from` the bedplate, means. for normally holding thepanA supp orting plate of eachV unit at -itslimit of" upward* movement,. saldi pan: groasing units: being laterally adjustablelongitudinally: of the shaft: and a cushioned. supportforthe free endfvoil each leedl plato operative to;` hold. the hed plate inf associated?positionl 7; In aapan greasing machine ofthe characterLA described; afifa-mev structure hauling.` a horizontal.

bearingf shaft, `a grease receptacle supported in. thedraxneVstructure', af series of" pan greasing unitsfor the simultaneousgreasing of a `battery of pans, each unit comprisingH a bed plate piVotally mounted` at one end on the shaft and` normally overlying thegrease receptacle, a pan.

` greaser rising fromthe bed plate a. pan supporting Plate Pivotallymounted; on the shaft. and] oyerlying. thehed plate andhaving. anopening therein. throughlwhichthe pan greaser upwardly extendsandpump-'mechanism in communication with theereaser and.. operated the pan.supporting plate... said panereasing'units being latumili?v adjustablelongitudinally ci the shaft^, a

cushioned support .ion the free: end: of. each hed l plateoperativeftchold-the hed@ plated-n adjustedA postioni. a', ironie.lonetheghed. plate,k each pump meohanismior; each pan greasing` unitincluding` apumphlpelc supported on the frame,l a piston in the. pumpblock, an adjustable Iconnection between the piston` andipan supportingplate,

afflexlbleconduit connection between the pump liloclrand-`gi1ea-serA andvalvedevices in the., pump block operated" bythe piston-'permitting theAflow of grease into the pump block. and. preventing.

the return of grease vfrom the pump block to the receptacle.

8. In a pan greasing machine of the character described, a framestructure having a horizontal bearing shaft, a grease receptaclesupported'in the frame structure, a series of pan greasing units for thesimultaneous greasing of a battery' of pans, each unit comprising a bedplate pivotally mounted at one 'end on the shaft and normally overlyingthe grease receptacle, a pan greaser rising from the bed plate, apan-supporting plate pivotally mounted on the 'shaft and overlying thebed plate and having an opening therein through which the pan greaserupwardly extends and pump mechanism in communication with the greaserand operated by the pan-supporting plate, the pump mechanism being sup--ported by and depending from the'bed plate, said pan greasing unitsbeing laterally adjustable longitudinally of the shaft and a oushionedthe piston and pan supporting plate; 'a flexible' conduit connectionbetween the pump block and` greaser and valve devices in the pump blockoperated by the piston permitting the flow of grease into the pump blockandpreventing the return of grease from the pump block to thereceptacle. Y

9. In a pan greasing machineof' the character described, a framestructure having'ahorizontal bearing shaft, a grease receptaclesupported in the'frame structure, a1 series of pan greasing units forthe simultaneous greasing of a battery of pans, each unit comprising. abed plate pivotally mounted at one end on the `shaft and normallyoverlying the grease receptacle, a pangreaser rising from the bed plate,apanlsupportw ing plate pivotally mounted'on the shaftran'd overlyingthe'bed plate and having an opening therein through which ,the pa'ngreaser upwardly extends and pump mechanism in communication with thegreaser and operated by the pan-supportingplate, the pump mechanismbeingsupported by and depending from -the bed plate, means for normallyholding each pan supporting plate at its limit of upward movement, saidpan greasing units being laterally. adjustable` longitudinally of theshaft land a cushioned support for the free end of each bed plateoperative to hold the bed plate in adjusted position, a framel on each'bed plate, the pump mechanism for each pan greasing unit includingapump block supported on the frame, a pistonin the pump block, anadjustable connection between the piston and,v pan supporting plate, ail'exible conduit connec-` tion between the pump block and greaser andvalve devices in the pump block operated by the piston permitting theflow of grease into the' pump block-and preventing the return of greasefrom' the pump block to the receptacle. l

10. In a pan greasin'gmachine of the character described, a framestructure having a horizontal bearing shaft, a grease receptaclesupported `in thev frame structure,a 4series of pan greasing units forthe simultaneous greasing of a battery' of pans, each unit comprising abed plate pivotally mounted at one end on the shaft and normallyoverlying the grease receptacle, a pangreaser rising from the bed plate,a pan sup-4 porting plate pivotally mounted on the shaft and overlyingthe bed plate and having an opening therein through which the pangreaserfu'pwardly extends and pump mechanism in communication with thegreaser and operated by the pan supporting plate, said pan greasingVunits being laterally adjustable longitudinally of the shaft and acushioned support for the free end of each bed plate operative'to holdthe bedV plate in adjust-ed position, the pan greaser including agreaser head having grease bores therein, a fabric pad covering the headand a pair ofv spring arms engageable with opposite sides of the headfor holding the pad in position thereon.

11. In a pan greasing machine of the character described, a framestructure having a horizontal bearing shaft, a grease receptaclesupported in the frame structure, a series of pan greasing units for thesimultaneous greasing of a batteryy of pans, each unit comprising a bedplate pivotally mounted at one end on the shaft and normally overlyingthe grease receptacle, a pan greaser rising from the bed plate, apan-supporting-plate pivotally mounted on the shaft and overlying thebed plate and having an opening therein through which the pan greaserupwardly extends and pump mechanism in communication with the greaserand operated by the pan-supporting plate, the pump mechanism 'beingsupported by and depending from'the bed plate, said pan greasing unitsbeing vlaterally adjustable longitudinally of the shaft and a cushionedsupport for the free end of each bed plate operative to hold the bedplate in adjusted position, the pan greaser including a greaser headhaving grease bores therein, a fabric pad covering the head and a pairofspring arms engageable with opposite 'sides' ofthe head for in positionthereon. f

12. In a pan greasing machine of the character described, a framestructure having a horizontal bearing shaft, a grease receptaclesupported in the frame structure, a series'ofA pan greasing units forthe simultaneous greasing of a battery of pans, each unit comprising abed plate pivotally mounted at one end on the shaft and normallyoverlying the grease receptacla' a pan greaserV rising from'the bedplate, a pan-supporting plate pivotally mounted on the shaft andoverlying the bed plate andhaving an opening therein through which theplan greaser upwardly extends and pump mechanism in' communication withthe greaser and operatedv by the pan-supporting plate, the pumpmechanism being supported by and depending from the bed plate, and meansfor normally 'lholding the pan supporting plateat its limit'ofupwardmovement, said pan greasing units beinglaterally adjustablelongitudinally of the shaftv and a cushioned support for-theA free endof each bed plate operative to" hold the-'bed-plate in adjustedposition,

the pan greaser including a grease head having" grease lbores therein',a fabric pad covering the' head` and a pair of spring arms engageablewithI opposite vsides of the head for holding the padl in positionthereon.

13. In a pan greasing machine of the character' described, a framestructure having a horizontaly bearing shaft, a greasereceptaclevsupported in' theframe structure, a series of pan greasingunits for the simultaneous greasing of a' battery of pans, each unitcomprising-a bedl plate plv-- otally mounted at one end on the shaft andnormally overlying the grease receptacle, a pan greaser rising from thebedV plate, a,y pan supporting plate pivotally mounted on the shaft andholding the pad overlying the bed plate and having an opening thereinthrough which the pan greaser upwardly extends and pump mechanism incommunication with the greaser and operated by the pan supporting plate,said pan greasing units being laterally adjustable longitudinally of theshaft and a cushioned support for the free end of each bed plateoperative to hold the bed plate in adjusted position, a frame on eachbed pl-ate, the pump mechanism for each pan greasing unit including apump block supported on the frame, a piston in the pump block, anadjustable connection between the piston and pan supporting plate, aflexible conduit connection between the pump block and greaser and valvedevices in the pump block operated by the piston permitting the flow ofgrease into the pump block and preventing the return of grease from thepump block toi the receptacle, the pan greaser including a greaser headhaving grease bores therein, a fabric pad covering the head and a pairof spring arms engageable with opposite sides of the head for holdingthe pad in position thereon,

14. In a pan greasing machine of the character described, a framestructure having a horizontal bearing shaft, a grease receptaclesupported in the frame structure, a series of pan greasing units for thesimultaneous greasing of a battery of pans, each unit comprising a bedplate pivotally mounted at one end on the shaft and normally overlyingthe grease receptacle, a pan greaser rising from the bed plate, apan-supporting plate pivotally mounted on the shaft and overlying thebed plate and having an opening therein through which the pan greaserupwardly extends and pump mechanism in communication with the greaserand operated by the pansup porting plate, the pump mechanism beingsupported by and depending from the bed plate, said pan greasing unitsbeing laterally adjustable longitudinally of the shaft and a cushionedsupport for the free end of each bed plate operative to hold the bedplate in adjusted position, a frame on each bed plate, the pumpmechanism for each pan greasing unit including a pump block supported onthe frame, a piston in the pump block, an adjustable connection betweenthe piston and pan supporting plate, a flexible conduit connectionbetween the pump block and greaser and valve devices in the pump blockoperated by the piston permitting the now of grease into the pump blockand preventing the return of grease from the pump block to thereceptacle, the pan greaser including a greaser head having grease borestherein, a fabric pad covering the head and a pair of spring armsengageable with opposite sides of the head for holding the pad inposition thereon.

15. In a pan greasing machine of the character described, a framestructure having a horizontal bearing shaft, a grease receptaclesupported in the frame structure, a series of pan greasing units for thesimultaneous greasing of a battery of pans, each unit comprising a bedplate pivotally mounted at one end on the shaft and normally overlyingthe grease receptacle, a pan greaser rising from the bed plate, apan-supporting plate pivotally mounted on the shaft and overlying thebed plate and having an opening therein through which the pan greaserupwardly extends and pump mechanism in communication with the greaserand operated by the pan-supporting plate, the pump mechanism beingsupported by and depending from the bed plate, means for normallyholding the pan supporting plate at its limit of upward movement, saidpan greasing units being laterally adjustable longitudinally of theshaft and a cushioned support for the free end of each bed plateoperative to hold the bed plate in adjusted position, a frame on eachbed plate, the pump mechanism for each pan greasing unit including apump block supported on the frame, a piston in the pump block, anadjustable connection between the piston and pan supporting plate, ailexible conduit connection between the pump block and greaser and valvedevices in the pump block operated by the piston permitting the flow ofgrease into the pump block and preventing the return of grease from thepump block to the receptacle, the pan greaser including a greaser headhaving grease bores therein, a fabric pad covering the head and -a pairof spring arms engageable with opposite sides of the head for holdingthe pad `in position thereon.

LESTER GLEN BURKHART.

